Table 1 Main characteristics of studies on GSTM1 and GSTT1 polymorphisms and RCC included in the meta-analysis.
Study | Year | Country | Sample size | GSTM1 | GSTT1 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Case | Control | Sample size | Case | Control | ||||||||
(case/control) | Present | Null | Present | Null | (case/control) | Present | Null | Present | Null | |||
Ahmad | 2012 | India | 196/250 | 94 | 102 | 134 | 116 | 196/250 | 71 | 125 | 144 | 106 |
Salinas | 2011 | Spain | 133/193 | 76 | 57 | 115 | 78 | 132/163 | 110 | 22 | 138 | 25 |
De Martino | 2010 | Austria | 147/112 | 67 | 80 | 53 | 59 | 147/112 | 120 | 27 | 89 | 23 |
Wiesenhütter | 2007 | German | 98/770 | 47 | 51 | 383 | 358 | 98/768 | 79 | 19 | 624 | 144 |
Moore | 2007 | Central and Eastern European | 925/1247 | 431 | 424 | 611 | 555 | 861/1199 | 694 | 167 | 990 | 209 |
Buzio | 2003 | Italy | 100/200 | 50 | 50 | 92 | 108 | 100/200 | 89 | 11 | 165 | 35 |
Sweeney | 2000 | American | 126/505 | 63 | 63 | 250 | 255 | 126/505 | 90 | 36 | 411 | 94 |
Longuemaux | 1999 | French | 173/211 | 83 | 88 | 94 | 116 | 171/210 | 146 | 25 | 170 | 40 |
